JavaFx – 线程“JavaFX Application Thread”java.lang.NullPointerException中的无限exception

我得到以下exception，甚至无法理解它出现在什么地方。 这意味着什么？

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException at com.sun.javafx.text.PrismTextLayout.addTextRun(PrismTextLayout.java:755) at com.sun.javafx.text.GlyphLayout.addTextRun(GlyphLayout.java:140) at com.sun.javafx.text.GlyphLayout.breakRuns(GlyphLayout.java:210) at com.sun.javafx.text.PrismTextLayout.buildRuns(PrismTextLayout.java:770) at com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1021) at com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:223) at com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:246) at javafx.scene.text.Text.getLogicalBounds(Text.java:358) at javafx.scene.text.Text.impl_computeGeomBounds(Text.java:1168) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.recomputeBounds(Parent.java:1516) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.updateCachedBounds(Parent.java:1588) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.recomputeBounds(Parent.java:1516) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.recomputeBounds(Parent.java:1516) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.computeLocalBounds(Node.java:3572) at javafx.scene.Node.updateLocalBounds(Node.java:3602) at javafx.scene.Node.getLocalBounds(Node.java:3463) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.updateCachedBounds(Parent.java:1588) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.recomputeBounds(Parent.java:1516) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Parent.getChildTransformedBounds(Parent.java:1724) at javafx.scene.Parent.recomputeBounds(Parent.java:1516) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.impl_intersectsBounds(Node.java:4992) at javafx.scene.layout.Region.impl_pickNodeLocal(Region.java:2931) at javafx.scene.Node.impl_pickNode(Node.java:4891) at javafx.scene.Scene$MouseHandler.pickNode(Scene.java:3899) at javafx.scene.Scene$MouseHandler.access$1600(Scene.java:3485) at javafx.scene.Scene.pick(Scene.java:1942) at javafx.scene.Scene.access$6700(Scene.java:159) at javafx.scene.Scene$MouseHandler.process(Scene.java:3711) at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485) at javafx.scene.Scene$MouseHandler$1.run(Scene.java:3521) at com.sun.javafx.application.PlatformImpl.lambda$null$174(PlatformImpl.java:295) at com.sun.javafx.application.PlatformImpl$$Lambda$59/1182424050.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$175(PlatformImpl.java:294) at com.sun.javafx.application.PlatformImpl$$Lambda$58/1283229537.run(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication.lambda$null$50(GtkApplication.java:139) at com.sun.glass.ui.gtk.GtkApplication$$Lambda$47/1609034571.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.elementData(ArrayList.java:418) at java.util.ArrayList.get(ArrayList.java:431) at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89) at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:306) at javafx.scene.Parent.updateCachedBounds(Parent.java:1583) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Node.updateBounds(Node.java:538) at javafx.scene.Parent.updateBounds(Parent.java:1711) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2404) at com.sun.javafx.tk.Toolkit.lambda$runPulse$31(Toolkit.java:348) at com.sun.javafx.tk.Toolkit$$Lambda$167/1784277725.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:347) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:374) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$405(QuantumToolkit.java:319) at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$51/396808120.run(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication.lambda$null$50(GtkApplication.java:139) at com.sun.glass.ui.gtk.GtkApplication$$Lambda$47/1609034571.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.elementData(ArrayList.java:418) at java.util.ArrayList.get(ArrayList.java:431) at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89) at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:306) at javafx.scene.Parent.updateCachedBounds(Parent.java:1583) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Node.updateBounds(Node.java:538) at javafx.scene.Parent.updateBounds(Parent.java:1711) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2404) at com.sun.javafx.tk.Toolkit.lambda$runPulse$31(Toolkit.java:348) at com.sun.javafx.tk.Toolkit$$Lambda$167/1784277725.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:347) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:374) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$405(QuantumToolkit.java:319) at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$51/396808120.run(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication.lambda$null$50(GtkApplication.java:139) at com.sun.glass.ui.gtk.GtkApplication$$Lambda$47/1609034571.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.elementData(ArrayList.java:418) at java.util.ArrayList.get(ArrayList.java:431) at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89) at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:306) at javafx.scene.Parent.updateCachedBounds(Parent.java:1583) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Node.updateBounds(Node.java:538) at javafx.scene.Parent.updateBounds(Parent.java:1711) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2404) at com.sun.javafx.tk.Toolkit.lambda$runPulse$31(Toolkit.java:348) at com.sun.javafx.tk.Toolkit$$Lambda$167/1784277725.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:347) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:374) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$405(QuantumToolkit.java:319) at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$51/396808120.run(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication.lambda$null$50(GtkApplication.java:139) at com.sun.glass.ui.gtk.GtkApplication$$Lambda$47/1609034571.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.elementData(ArrayList.java:418) at java.util.ArrayList.get(ArrayList.java:431) at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89) at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:306) at javafx.scene.Parent.updateCachedBounds(Parent.java:1583) at javafx.scene.Parent.recomputeBounds(Parent.java:1527) at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1380) at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078) at javafx.scene.Node.updateGeomBounds(Node.java:3556) at javafx.scene.Node.getGeomBounds(Node.java:3509) at javafx.scene.Node.getLocalBounds(Node.java:3457) at javafx.scene.Node.updateTxBounds(Node.java:3620) at javafx.scene.Node.getTransformedBounds(Node.java:3403) at javafx.scene.Node.updateBounds(Node.java:538) at javafx.scene.Parent.updateBounds(Parent.java:1711) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Parent.updateBounds(Parent.java:1709) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2404) at com.sun.javafx.tk.Toolkit.lambda$runPulse$31(Toolkit.java:348) at com.sun.javafx.tk.Toolkit$$Lambda$167/1784277725.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:347) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:374) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$405(QuantumToolkit.java:319) at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$51/396808120.run(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication.lambda$null$50(GtkApplication.java:139) at com.sun.glass.ui.gtk.GtkApplication$$Lambda$47/1609034571.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException